package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.mapper.DishMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.CategoryService;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;


@RequestMapping("/admin/dish")
@RestController
@Slf4j
@Api(tags ="菜品相关接口")
public class DishController {

    @Autowired
    DishService dishService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    private DishMapper dishMapper;

    @Autowired
    RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品接口")
    public Result newDish(@RequestBody DishDTO dishDTO){
        log.info("新增菜品{}",dishDTO);
        //清理redis缓存
        String key = "dish_" + dishDTO.getCategoryId();
        redisTemplate.delete(key);

        dishService.newDishWithFlavor(dishDTO);
        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品查询{}",dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("批量删除菜品")//Identifiers //？
    public Result delete(@RequestParam List<Long> ids){//有了这个注解MVC框架就会解析字符串，根据逗号进行分隔，然后把分隔后的每一个原属封装到List里 //？
        log.info("批量删除菜品{}",ids);
        //清楚redis缓存
        cleanCache("dish_*");

        dishService.deleteBatch(ids);
        return Result.success();//?
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getDishById(@PathVariable Long id){
        log.info("根据id查询菜品{}",id);
        DishVO dishVO = dishService.getByIdWithFlaver(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品信息以及口味
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        dishService.updateWithFlaver(dishDTO);
        //清楚redis缓存
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 启用或禁用菜品
     * @param status
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("启用禁用菜品")
    public Result startOrStop(@PathVariable Integer status,long id){
        log.info("启用禁用菜品{},{}",id,status);

        //清楚redis缓存
        cleanCache("dish_*");

        dishService.startOrStop(status,id);
        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param dishDTO
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(DishDTO dishDTO){
        log.info("根据分类ID查找菜品{}",dishDTO);
        //获得了菜品的名字通过名字返回分类id
        List<Dish> list = dishService.list(dishDTO);
        log.info("查找后的菜品{}",list);
        return Result.success(list);
    }

    /**
     * 清理redis缓存
     * @param pattern
     */
    private void cleanCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
